Slack: New Reaction Added

Trigger Communications

Triggers when a reaction (emoji) is added to a message in Slack. Useful for tracking engagement, monitoring feedback, or triggering workflows based on specific emoji reactions.

At a Glance

Field	Value
Trigger ID	slack-new-reaction-added
Category	Communications
Tags	slack, communication, reaction, emoji, engagement

Trigger Configuration

Field	Type	Required	Description
conversations	array	No	Select one or more channels to monitor for reactions. Leave empty to monitor all channels.

Trigger Result

Field	Type	Required	Description
triggeredAt	string	Yes	Timestamp when the event was received (UTC, RFC3339 format)
eventType	string	No	Slack event type (e.g. reaction_added)
reaction	string	No	Name of the emoji reaction that was added
user	object	No	User who added the reaction
item	object	No	Item (message) that received the reaction
event_ts	string	No	Timestamp of the reaction event

Workflow Root Example

json
{  "nodes": {    "root": {      "type": "slack-new-reaction-added",      "payload": {        "conversations": []      },      "children": [        "log_event"      ]    },    "log_event": {      "type": "log",      "payload": {        "message": "Triggered at {{$trigger.triggeredAt}}"      },      "children": []    }  }}

Downstream nodes can use {{$trigger.triggeredAt}} and any result fields listed above. Event triggers usually expose the raw source payload under a field such as event, body, trade, or raw.